Improvement in explosive shells



, T. D. HART.

EXPLOSIVE SEELL.

No. 41,844. Patented Mar. 8, 1864.

I B, the bore of the containing the explosive material;) E, an ap IMPROVEMENT IN EXPLOSlVE SHELLS.

Specification forming part of Letters Patent No. dlfi fid, dated March 8, 1864.

To all whom it may concern.-

Be it known of the city and county of Philadelphia, State of Pennsylvania, have invented a new and Improved Mode of Constructing Explosive Shells and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in securing anumber of bars longitudinally around the mainbody of the sh ell, in the manner as hereinafter described.

In order to enable others to practice my in-' vention, I will proceed to describe its construction.

0n reference to the accompanying drawings, which forms a part of the specification, Figure 1 is a longitudinal section through the center of the shell Fig. 2, a transverse view of the same across the line 1 and 2, Fig. 1.

Similarletters refer to similar parts throughout the several views.

A A is the main body of the shell; 0 O, a number of bars arranged around the same; same, (or the chamber for that I, TrroMPsoN D. HART,.

erture to be tapped for the insertion of an ordinary fuse, for the explosion of the powder in chamber B; D, the sabot screwed into the rear end of the shell, all for the purpose as hereinafter described.

It will be observed that the bars, 0 are firmly dovetailed in and around the main body of the shell A, and are secured in that manner by casting bars 0, first in separate molds, then arranging and securing the same in a cylindrical form by driving a ring over them, and placing them in the mold, (that is prepared to cast the body A,) when the metal is poured in, securing the bars to the body in the manner shown. By securing the bars in this manner they are held more firmly, and, by. reason of the shell being made-entirely of iron and not manipulated upon the lathe, is more economically constructed.

What I claim, and desire to secure by Letters Patent, is-

Securing the bars 0 around the body of the shell A, in the manner described, and for the purpose specified.

THOMPSON D. HART.

Witnesses THOMAS SHAW, B. F. HART. 

